How To Fix SDDL_PARSER_MSG313 - Only key fields from parent are allowed in to-parent associations

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 313

• Message text: Only key fields from parent are allowed in to-parent associations

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG313 - Only key fields from parent are allowed in to-parent associations ?

  The SAP error message SDDL_PARSER_MSG313 indicates that there is an issue with the definition of a to-parent association in your data model. Specifically, this error occurs when you attempt to include non-key fields from a parent entity in a to-parent association. In SAP, to-parent associations are designed to link child entities to their parent entities using only the key fields of the parent.
  Cause:
  The primary cause of this error is that the association you are trying to create includes fields that are not part of the key of the parent entity. In SAP data modeling, to-parent associations must strictly use key fields to ensure proper relationships and data integrity.
  Solution:
  To resolve this error, you should:
  
  
  Review the Association Definition: Check the definition of the to-parent association in your data model. Ensure that you are only using key fields from the parent entity.
  
  
  Modify the Association: If you have included non-key fields in the association, remove them. Only include the key fields that uniquely identify the parent entity.
  
  
  Validate Key Fields: Make sure that the key fields you are using in the association are correctly defined in the parent entity. If necessary, adjust the key fields in the parent entity to ensure they meet the requirements of the association.
  
  
  Test the Changes: After making the necessary adjustments, test the data model to ensure that the error is resolved and that the associations work as intended.
  
  
  Related Information:
  
  Key Fields: In SAP, key fields are attributes that uniquely identify a record in a database table. They are essential for establishing relationships between different entities.
  Data Modeling: Understanding the principles of data modeling in SAP is crucial. Familiarize yourself with concepts like associations, cardinality, and entity relationships.
  SAP Documentation: Refer to the official SAP documentation for detailed guidelines on data modeling and associations. This can provide additional context and examples.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP support team or consulting the SAP community for further assistance.